Antifriction side bearing



April, 14, 1931- JQ'F; O'CONNOR 1,890,565 ANTIFRICTION $IDE BEARING Filed May 12, 1928 Patented Apr. 14, 1931 UNITED STATES PATENT OFFICE JOHN F. O'C N OR, or CHICAGO, ILLINOIS, ASSIGNOR To w. H. MINER, INc., OF CHICAGO, ILLINOIS, A CORPORATION or DELAWARE ANTIFRIOTION Application filed May 12,

This invention relates to improvements in anti=friction side bearings.

The main object of the invention is to provide a side bearing for railway cars, co-operating with the body and truck bolsters thereof, which is self-centering through cooperating-means on the body and truck bolsters and which is movable with said bolsters.

A more specific object of the invention is to provide a bearing member of the character indicated, including an anti-friction rolling element co-operating with opposed bearing members on the body and truck bolsters of railway cars providing crossing guideways controlling the position of the anti-friction element during its movement in the different angular positions assumed by the bolsters and acting to center said elementwhen the bolsters are brought into aligned relation.-

, Other and further objects of the invention will more clearly appear from the description and claims hereinafter following.

In the drawing, forming a part of this specification, Figure 1 is a transverse sectional view through the underframe structure of a railway car, showing portions of the body and truck bolsters in elevation and illustrati'ng .Iny improvements in connection therewith. Figure 2 is a top plan view of the truck bolster member illustrated in Figure 1, showing the lower member of my improved side bearing in connection therewith. And Figure 3 is a longitudinal, vertical, sectional view through the bearing member illustrated in Figure 2, corresponding substantially to the l.ine33 of said figure.

In said drawings, 10 indicates a portion of the body bolster of a railway car and 11 the up er portion of the co-operating truck bolster. The center bearing member, about which the bolsters pivot, is indicated by 12 and is of the usual form.

My improved side bearing comprises, broadly, two housing members A-A and an anti-friction rolling element B.

The housing members A are of similar design and, as shown, one of the same is secured to the bottom side of the body bolster, while the other is secured to the top of the the truck bolster. Each housing'is in the SIDE BEARING 1928. Serial No. 277,268.

form of a casting having a main body portion 13 provided with laterally extending securing lugs 14-14 on the oppositesides thereof. The securing lugs are so arranged that two of the same are disposed on one side of the body member, while a central lug is disposed on theopposite side. The body portion 13 of each housing A is provided with spaced parallel side walls 15-15 forming a guideway therebetween. As shown, the side walls are connected by curved end walls 16-16,

In the present instance, the anti-friction element B is shownas of the ball bearing type,- and the bottom wall of the housing which sus tains the thrust of the anti-friction element is curved so as to correspond with the contour of the ball bearing member 13. The side walls 15, aswell as the end walls 16, also present curved surfaces which co-act with the ball member.

As clearly illustrated in Figure 1, the base portion of the housing A, which is secured to the body bolster, is inclined so as toproperly fit the inclined bottom face of said bolster.

As shown in Figure 2, the two housings A are so arranged that the guideways, defined by the side walls, cross each; other in such a manner that the ball B is confined by the side walls 15 to definitely position the same within the guideway betweenthe side walls 15 of the other housing.- In Figure 2, the position of the housing A, secured to the body bolster, is indicated in dotted lines and this position is assumed when the body and truck bolsters are vertically aligned.

In order tO-prevent clogging of the bearing member, the bottom housing A, which is secured to the truck bolster, is provided with clearing openings 1-7-17 at the opposite ends thereof, through which cinders and other foreign matter, which otherwise would accumulate in the bearing, is discharged:

The operation of my improved anti=friction bearing is as follows: When the body and truck bolsters are swung angularly with re spect to each other about the center bearing member 12, the two housings will be displaced with respect to each other, andthe anti-friction element 13-, which is confined between the spaced parallel side walls15 of each housing,

will be' guidedalong the guideways between "theside walls of said housings and'rnaintained in a definite predeterminedpositionfl Upon swinging movement'of the body bolster reverse" directionwith respectto the truck bolster 11, theballB will travel inwardly in V both of the guideways of the housings 'A'until movement thereof is-arrested byicontact with the corresponding end walls 16;

' Itwill fbe e'vi'dentthat when the bolsters 1 0 andll are returned to their alignedposition,

' 'theIb all will be forced to travel backto the .centered position'shownin Figure 23 I While I; have herein hown and "described what Iconsider the preferred manner 0f: car

' rying {out my-inventiom the same is "Inerely illus'tfativeai ldi-I contemplate all changes and i infidifimfiohs which mewithin the scope of the claimsappend dih t V I an anti-friction element disposed between of alinement with the linear path. ofmove mentof's'ailelement on the other use oth said guide means'simultaneously andflcon; timus1y enga i g the anti-friction element during allfopjei'ativef positions ofrelative swiveling movement: of the bolsters and I said f guide meansof each ofsaid-bolsters engaging f the anti-friction .-element on opposite sides and cooperating with the guide meanson' the :*sumealignedrelation.

* other bolster toaequtrohthe position of said element withrespectf jto both bolsters duri g therlative angular moveme tof the-bolsters and tocenter"the sarne whensaidj bolsters'as f 2. 11111ananti fi'iction side bearing mil way car's, co-operating with. the body 2 and.

truck bolsters of thecaif"; wherein the bolsters are relatively movable to each other about a .central pivotal axis{the combination with an anti-frictionelen ent-interposedfbetween said bolsters having rolling eontact then-" with and'gui'de means on pjne 'f said bolsters-t m directions,

nite li ear p ajth with respect to saidbplster and :p weliaxis;weeni .bq st rs'estee ii sin,di-fiier n the combination with'an anti-friction element interposed between saidbolsters'and having rolling movementon the bearing surfaces of said bolsters of means on said bolsters simule itaneously and continuously co-operating with said element, the means ;.on each bolster hav} in'g constant engagement with said element confining thesame to'movement along a definite-pathwith respect to SaiClbOlSteI and engaging said; element to move the same along. the other bolster to-control the position. of said element along its path of movement with respect to the last named bolster, during swingingmovement of said bolsters with re-.- spect to each etherfwhencontact vis broken between the anti-friction element :and the bearing surface of the body bolster. V p

L In an anti-frictionbearing for railway cars,co o'perating with the body and'truck bolsters thereof; the combination with a member fixedto each bolster, presenting a r 7 bearing surface and spaced parallel: guide 7 1 walls, the spaced guide. walls'of the opposed %1.-In anfanti-friction side bearingfor railway. cars, co-j0perat ing with the g body andt truckbolsters-thereofithe "combination with a 3n 7 "said 'bolstersjand' adapted to roll with referfencetoithesarne; o f means on each bolster by; whichsaid element is guidedin a definite 1 linear -path with respect tosaid'bolsterand out;

members being disposed at an angle to ea ch other of an anti-friction element interposed between the .bearingfsurfaces of said. meme bers and. having rolling contacttherewith, said anti-friction element beingconfine'd' be :tween the parallel side walls ofbothofsaid members; whereby the position of said ,ele

ment along its path of l movement is ,fcontrolled' duringrelative movement of the body andtruc'kibolsters.;l .5-" V r [5; In antisfriction bearing for railway cars, 'co-operating:with the;body and' truck friction element having rolling contact i with saidbearing surfaces a guideway on :each

"member formed {by-spaced parallel guide wallsbetween which-said velementis cone fined, the guidewayso'f saidmember extend ing indifferent directions; one across the other, whereby; the position .of the"anti-;f riC- tion' element in isaid guideways is. definitely 7 controlled during relative movement of said bolsters and centered when said bolsters assumelavertically alignedp'osition. f.

7 6. In. an anti-friction bearing for railway cars provided" with body and. truck; bolsters; V the combination with a housing secured'to each bolster, said housing having spaced parallel side walls forminga guideway; of an anti-friction element having; rolling move ment, said element.havingjengagement with the opposed-side walls ofboth of said housings and "being confined therebyg-the. guides ways of said housings being angular-1y ldisposed with reference to'each-otherflin cross f ing relation, whereby gthe'movement of said element is definitely controlled during relative angular movement of the bolsters.

7. In an anti-friction bearing for railway cars having body and truck bolsters swingable angularly with respect to each other, the combination with a housing secured to each bolster, said housing having a bearing surface and spaced parallel guide Walls defining a guideway therebetween, the guideways or said housings crossing and deviating with respect to each other; of an anti-friction rolling element interposed between said bearing ing surfaces and confined between the parallel guide walls of both housings.

8. In an anti-friction bearing for railway cars having opposed body and truck bolster members, the combination with a bearing element fixed to each bolster, each of said elements being provided with a guideway, the guideways of said elements deviating with respect to each other; of an anti-friction element having rolling movement on said bearing elements and constantly engaging in and fitting the guideways of both of said bearing elements to confine the anti-friction element against lateral movement with respect to the guideway of each bolster.

9. In an anti-friction bearing for railway cars provided with opposed body and truck bolsters, the combination with a bearing member secured to each bolster, said bearing members presenting opposed bearing surfaces, each bearing member having spaced parallel side walls defining a guideway therebetween, said guidewa-ys extending in different directions and crossing each other; of an anti-friction ball bearing interposed between the bearing surfaces of said guideways, said ball bearing engaging between the spaced side Walls of both of said bearing members and being confined against lateral displacement with respect to the guideway of each of said bearing members by the side walls thereof.

In witness that I claim the foregoing I have hereunto subscribed my name this 10th day of May, 1928.

JOHN F. OCONNOR. 

